Asymptotic Formulas for Variance-Mismatched Fixed-Rate Scalar Quantization of a Gaussian Source

被引：33
|
作者：
Na, Sangsin [1 ]
机构：
[1] Ajou Univ, Div Elect & Comp Engn, Suwon 441749, South Korea
来源：
IEEE TRANSACTIONS ON SIGNAL PROCESSING | 2011年 / 59卷 / 05期
关键词：
Asymptotic SNR formulas; Bennett's integral; Gaussian source; mean-square error distortion; variance mismatch; APPROXIMATIONS; QUANTIZERS;
D O I：
10.1109/TSP.2011.2112354
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Asymptotic formulas are derived for the mean-squared error (MSE) distortion and the SNR of a variance-mismatched fixed-rate scalar quantizer designed MSE-optimally for a Gaussian source. It is discovered that, in the case that the standard deviation ratio of the applied-to density to the designed-for density is greater than root 3/2, the SNR in dB increases at large rate R as 9.03 R/rho(2) + 15(1-1/rho(2)) log(10) R plus a constant that depends only on rho.
引用
收藏
页码：2437 / 2441
页数：5
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